How do I get my pig to like me?

Well, yesterday was my Caramel's birthday, and I got her a grooming kit. I brushed her, and she seemed very happy! Also, I bought her some wood toys, and she chewed on them immediately. I noticed that TODAY, Caramel was very happy, and less scared around me. I don't know if it was the wood toys, or the extra grooming, but I suggest both.